CVE-2020-25637
Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system.
Does this matter?
Lower severity and a low EPSS score (0.53%). Track it; it rarely justifies an emergency change on its own.
Description
A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- redhat/libvirt · opensuse/leap
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.htmlMailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1881037Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.htmlMailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1881037Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.